This folder contains correspondence and other documents relating to the business of the Edison Manufacturing Co. Most of the items for 1904 are reports sent to William E. Gilmore, vice president and general manager of the company, by the Mooney & Boland detective agency. The reports pertain to the activities of James Garvin, Chicago agent for the Edison Manufacturing Co. and executive of the National Phonograph Co.

Approximately 20 percent of the documents have been selected, including a representative sample of the detectives' reports. Among the items not selected are routine letters regarding fan motors and phonoplex circuits.

Other items in the Document File relating to the Edison Manufacturing Co. can be found in D-04-02 (Battery - Primary) and in D-04-24 (Motion Pictures).